Is it possible in springframework to log the time taken by methods [ selective | all ] automatically. By automatically i mean, i don't want to go to each method and write the log.debug ( "...." ); stuff.

5 Answers
5

AOP is what you need here. AOP allows you to add code to your application without modifying the original code. Spring AOP prefers to accomplish this with Proxy objects. Proxy objects use a Decorator Pattern to wrap the original Target object and add code. The Proxy is configured to implement one or more interfaces of the original Target object.

Here, to time an application, the idea is to use the PerformanceMonitorInterceptor, one of the performance monitoring classes that ship with the Spring Framework.

The first option is to use the Spring class ProxyFactoryBean to create Spring AOP Proxy objects. To do this:

Define your original bean:

Define a PerformanceMonitorInterceptor:

Define a RegexpMethodPointcutAdvisor:

Define a ProxyFactoryBean to proxy your original bean and apply your Advisor

I don't know why but it is not working.Also edit you code from <property name="advice" ref="timingLogger"> to <property name="advice" ref="timingLogger"/>
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Rakesh JuyalSep 30 '09 at 6:36

just it is not logging anything, i added the line u specified to enable the TRACE, that thing didn't worked out. Then i deleted my existing log4j prop and created a new one with everthing you mentiond, even then i am not getting anything in log. :|
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Rakesh JuyalSep 30 '09 at 6:58

2

That configuration snippet on its own will not do anything. You need to declare a Spring AOP BeanPostProcessor (or is it a BeanFactoryPostProcessor) to auto-proxy the beans with the timingAdvisor.
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skaffmanSep 30 '09 at 7:20

First of all see the post by 'Pascal Thivent', it did a great help to me. After changing your log4j.properties and creating the timingAdvisor what you have to is, binding this adviser to the class you wan to enable the debugging. You have to change your code like this.

I see that there has already been an accepted answer here, but I'd encourage everyone to take a look at the latest release of Spring Toolsuite (SpringSource's distro of Eclipse). It comes with a profiling utility out of the box, Spring Insight, that provides these exact statistics at runtime in a nice format. Just deploy your app to its internal tomcat, hit a few pages, then go to the /insight servlet and see the time taken in each method called all the way down to the SQL statements that were executed and how long they took.

You can take a look at stagemonitor. It is a open source java web application performance monitor. It captures response time metrics, JVM metrics, request details (including a call stack captured by the request profiler) and more. The overhead is very low.

Optionally, you can use the great timeseries database graphite with it to store a long history of datapoints that you can look at with fancy dashboards.

Example Screenshot:

Take a look at the project website to see more screenshots, feature descriptions and documentation.